You have been subscribed to a public bug:
After turning on the system, mouse pointer is not visible and first key
press on keyboard is ignored.
When I press mouse button (left or right), mouse pointer appears and I
can control it, but when I leave it for few seconds, it disappears
again.
As for the keyboard, the first key press is ignored (e.g. when I try to
type "zone", only "one" is visible on the screen because the first key
is ignored) - this behavior repeats itself after few seconds of not
pressing any keys.
My keyboard has backlight option and when I turn it on, the light
flickers and disappears when the keyboard gets "disconnected".
Disconnecting and connecting again mouse and keyboard makes the issue
disappear - from that moment on, both mouse and keyboard work like a
charm (until reboot).
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: keyboard mouse
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Keyboard and mouse not working after update to 15.04
https://bugs.launchpad.net/bugs/1452830
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which is subscribed to linux in Ubuntu.
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